Sink



FIG. 1 is a top plan view of a sink showing our new design;

FIG. 2 is a cross sectional view taken on line 2--2 of FIG. 1;

FIG. 3 is a cross sectional view taken on line 3--3 of FIG. 1;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a left side elevational view thereof; and

FIG. 8 is a rear elevational view thereof. 

The ornamental design for a sink, substantially as shown. 